Small metal linking rings
Linking Metal Rings
These rings link only at your command, take the 2 rings out of you pocket and magically rub them together and they will stay stuck together. Take them apart give them to your audience, they try again but they still want stick together. They give them back and you can do exactly the same again. A very good trick easy to carry around with you and you can perform any where, no threads or sticky stuff. All items can be examined before and after the trick.